Liquid Telecom, majority owned by Econet Wireless Global, entered into an agreement to acquire Neotel, the company said in a statement.
It will pay Tata Communications and minority shareholders led Nexus Connexion 6.55 billion rand (USD 428 million) to create the continent's largest broadband network and business-to-business telecommunications service.
Tata Communications had acquired 68.5 per cent controlling stake in Neotel in 2009.
"Liquid Telecom is partnering with Royal Bafokeng Holdings (RBH), a South African empowerment investment group, which has committed to take a 30 per cent equity stake in Neotel," it said.
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The deal comes four months after a 7 billions rand proposal of Johannesburg-based Vodacom Group Ltd to buy Neotel fell after almost two years of regulatory battles and legal opposition to the deal by competitors.
"The shareholders of Neotel - Tata Communications of India and minority shareholders led by Nexus Connexion - have agreed for Liquid Telecom to acquire Neotel for ZAR 6.55 billion," a statement by Liquid Telecom, Tata Communications and other stakeholders involved in the deal said.
Through a single access point, businesses across Africa will be able to access Liquid Africa's 24,000-km of cross- border, metro and access fibre networks, spanning across 12 countries from South Africa to Kenya, with further expansion planned.
"We are excited about this transaction. We will also be increasing investments into Neotel to cater for rapidly accelerating mobile and enterprise traffic, enabling us to launch exciting new products and services," Nic Rudnick, Liquid Telecom CEO, said.
The transaction is subject to approval by South African regulatory authorities and is expected to be completed later this financial year, the statement said.